Wet magnetic ore-separator.



No. 315,113. PATENTED MAR.13, 1906.

IF. ,J- ODLING & w. JAMIBSON. WET MAGNETIC ORE SEPARATOR;

I APPLICATION FILED MAY l 1904.

' 6L I 2 sums-$115521? 1.

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F I: v I if if? L ifl r- I LU L; j Y 4B2 I I Inventoni 32 Witnesses"Z1292 William Jamicson {a i u -1f5-anczs Jams will)?! 1 Attafngy To all,whom it may cnlwern:

. UNITED sTATES PATENT OFFICE.

FRANCIS JA Mitre .UULING AFT) \VILLIAM JAMIESON, OF MELBOURNE, VlCTORIA, AUSTRA TlIA.

WET .MAGNE'TIC o E-sEPARAToR.

Specification of Letters Patent.

Patented Math 1 3;-1eoe.

Application filed May 19, 1904. Serial'No. 203,652;

Be it known that we, FRAXCIS JAMES 01) ILING, mining engineer, residingat No. 2

Princes Walk, Pl'llH'PS llridgc, and WVILLIAM. "JAMIESON, gen t] rm an.'l'CSldlIlg at Broken H111 Chambers, N o. .31 Queen street, Melbourne,

in the British Sum of Victoria Common- .wealth of Australia, subjects ofthe King of partly by capi Great Britain and Ireland, have invented anew and useful lmpr()\ 'en'1e1it in Wet Magnetic Ore-Separators, ofwhich the following is a specification.

This invention relates to an improvement in wet n'lagnctic oreseparators whereby a web, wall, or connecting-link of water (here'-inafter called a water web) is created or formed in the magneticfieldand into which water web the pulverized materials under treatmentpass in order that the magnetic particles may be attracted by thepole orpoles,while the non-magnetic particles pass To produce the both of thepoles with a shield of non-magnetic material, and which shield has acoating of water imparted to it and is arranged to lie above thechute,-table, or appliance by which the pulverized ore under treatmentis fed to the magnetic field. Said water web is created and maintained(although the water is continuously fiowin iary attraction from thewetted or watercoated shield and partly by each attracted grain of orecarrying water with it, and hence said water-web constitutes an easypassage-way or conduit for the particles of ore capable of magneticattraction which are in the pulverized oregrains flowing downin thewateron the chute or table.

The pole or poles are placed at such a distance apart as not to touch orintercept the flow until the water web is formed and.main-' tained;

' In order that the invention may be well understood, it will now bedescribed aided by a reference, to the accompanying'sheets of drawings,which show how the watei web is created-in wet in whichc Figure 1 is afront view, and Fig. 2, a plan, ofa magnetic se arator, while Fig. 3 isaver,

tical section on ine a a, Fig. 1. 'Figs. 4 and.

- 5 are detail sections of the poles, the former Showing the water-pipewetting the shielddown the chute or table) piece. I I v E 1s a launderto receive the waste water magnetic ore-separators, and;

and the latter the water web created between tive the water web formedbetween circular 6o poles. y I

The upper poles A in the apparatus shown in Figs. 1 to 6 are'coveredwith a shield B, which is in the formof anendless V-shaped rubber bandsupported on small sheaves B;

and to one of each set of sheaves motion is imparted by a'belt pulley BSaid shield B is coated with 'water issuing vfrom a small" open endedvertical pipe 0, arranged just outside the magnetic field, and out ofthe upper end of said pipe the water slowly flows an adheres to theshield as it is passing into the magnetic field, wherein the water onthe -.shield attracts the feed-water to form the water web D. The upperand lower poles A and A are shown of V shape,fand theymay be arrangedhorizontally or vertically opposite each other or nearly so, or, infact, in any positionwhich will allow the-pulverized ore.

to be fed in water onto a table E, to which a percussive or. vanningmotion is given by any. well-known mechanical means, as by aicranmovement K, and'said table passes under the shield-covered pole A, sothat the aforesaid from a brew et be ted'to the lower poleandnon-magnetic materials, and F and F are'water-jets operatin .on'asheathed disk G.

In place of the ru her-band shield-Ba brass or othernon-magnetictraveling shield o 5 may be employed. I H and H areupper andlower-yoke-pieces carrying thepoles', I the core 'iece to the upper andlower {aces-of w-hic the okepieces are'secii'red, and J is the insulatecop- 10o per-wire bobbin. v

This formation of the water web may be created on any type of magneticseparator having the poles and feedetablesuitably situated for thepurpose and with'one 'or both of 105 the poles fiilnish'ed with ashield, which is, wetted, as 'herein'before stated, or man alternati-vethe poles themselves may be-,ro-.

Water web D may be created or formed-in the magnetic field. Table E-i'sshown rovided with a'feed hopper e, and the tab e is carried by srinPgJ-sup 'orts E, projecting up tated or'reciprocated, and insuch casea shield is not necessary. For instance, as shown in Fig. 7 the poles Aand A are cylindrical and caused to be rotated, the upper 5 pole havinglongitudinal strips of non-magnetic conducting material a onitssurlace,while the feed-table Eterminates at the side of the Water web D, whichis formed between the poles. IO In the working of the apparatus shown inFigs. 1 to 6 the pulverized ores are fed with water to the chute ortable, and as the water web' D is created and maintained in the magneticfield it serves as a conveying medium for the magnetic mineral, whichwhen attracted is retained against the shield until such time as theshield passes beyond the end of lower pole-piece, where the magneticiield becomes weakened by reason of the formation of the upper poleswith peaked prolongations P, and ,hence'the magnetized particles willleave or dro from the shield and follow the magnetic fie d to and uponthe re volving disk G, nd in which transit they are aided bye water jetF playing'on the shield. The upperpart of the disk G and the parti' clesthereon are influenced by the upper pol e- F piece, while the lower partof the disk is inuen'eeel by the opposite polarity of the lower 3pole-piece. The said magnetic particles will then be carried by therevolving disk until alley-are repelled by the reversal of the magneticpolarity in said disk, while any adhering particles will be swept oil bythe water jet F. Again, when cylindrical revolving poles are employed,as is shown in Fig. 7, the magnetic mineral or particles will be carriedby the up er pole to outside the magnetic field and t eres t be sweptoil with a; water 4 jet, as beiore described.

Having now described our invention, what we claim as new, and desire tosecure by Letters Patent, is

1. in a magnetic separator, the combine tion with a field-frarne having0 posed poles extending horizontally, of'a tab e extending between saidpoles, means for feeding a mixture of water and the material to beseparated to said table to flow below the upperpole, a

' 5o band of non-magnetic material adapted to travel horizontally andadjacent to the face of the upper pole, and means for maintaining awater wcb'between saidnonnnagncticband and said table.

2. In a magnetic separator, the combination with a fieldirame having upor and lower poles extending horizontally, oih guiding-ta ble extendingbetween. the poles, means for feeding a n'iixtnrc of water and the mate-6o rial to be separated along said table and bclow the upper pole, anendless band of nonmagnetic material adj r nt to the face of the upperpole, means for r5 .ising a endless band to trave and means tormaintaining a water web between said traveling band and the poles.

said table, the magnetic particles being carried by said web to bedelivered at the side of etic separator, the combinaeld-l rame havinupper and 3. In a ma tion with, a

"lower poles extending horizonta ly, of a suporting table or apronextending between the aces of the poles, means for causing a mixture ofwater and material to be separated to fiolv along said supporting-tabletoward the pole-faces, a band of non-1nagnetic material disposedadjacent to the face of the upper ole, means for causing said band totravel ongitudinully along said upper-pole face, means for maintaining afilm or coating of water on said band, and means for maintaining a waterweb between said film and the water on said table, the magneticparticles being carried by said traveling film and delivered at thesides of the poles.

4. In a magnetic separator, the combinetion with a held-frame having upor and lower poles extending longitudina ly and separated by an air-gap,of a guiding table or a ron extending through said gap and non! t isface of the, u ,per pole, means for feeding the material to e separatedto said table, means for vibrating said table to cause the materialthereon to be moved toward the upper-pole face, a band of non-magneticmaterial adjacent to'the upper-polc face, means for causing longitudinaltravel of said band,

and means for maintaining a film of water. on

said traveling band, the magnetic material.

being received by said film and carried thereby to'be delivered at theside of the poles.

5-. in iagnctlc separator, the combination with a licld-freme having anupper and slower pole-piece extending horizontall and separated by anair-ga means for causing a film of water to trave longitudinally alongthe face of the upper pole-piece, a supporting table or apron extendingthrough said airgap near the up er-pole face, means for feedmg materialto e separated to saidtable or apron, and means for vibrating said tableto cause the material-to move toward the upperpole face, the magneticparticles of the material beinr attracted by the upper pole and conveysby the traveling water film thereon .to be delivered at thc'sidc of theole-piece. 1

gap, of a supporting-table extending through said air-gap near one pole,rmjlans-for feeding material to be separated to said table and towardsaid poleimeans for maintainnjig a water web between said pole and saidtable, and

- means for causing said water web to travel whereby the magneticparticles are attracted by said pole and conveyed by said traveling' vsaid gap near :one pole, means for causing 9. In a ma .1 tion with 1&12o

- through said air-gapnear the tip of the 11 per and toward said pole,said film and water co operatlng to form a Web between said pole andtable, the. magnetic articles being a' tracted by said pole an conveyedby said traveling film and Web to the-side of the pole to be delivered.

netic separator, the combinaeld-frame having upper and lower pole-piecesextending horizontally, said pole-pieces having I-shaped tipsseparated'.

y an airgap,- a guidingtab e extending pole-piece, means for feedinga'mixture o wa:

- and toward the ter andmaterial to be separated to said table formaintainingatravelingfilmofwater along said upper-pole .tip, said filmand the water on the table cotiperating 'to'form a thin. web

between said pole-tip and the table, the magnetic partieles"bsingattracted by the'upper pole andconveyed by thetraveling film to bedelivered'.

10. In a magnetic separator,, the combination with a field-frame havingupper and lower pole-pieces extending' horizontally, said- V-shapedti :5separated ole-pieces .havin ap, 5 guiding -tab e extending through saigap near the'tip of'the u per pole-piece, means. for maintaining a we ofwater between the upper-pole tip and said ta-.

I {longitudinally for feeding material to water web whereb the ble,means for causing said web to'travel along the upper-pole ti means beseparatetf table, and means for vibratingsaid table to cause thematerial to be conveyed toward the magnetic particles are attracted by te upper pole-plece and 1 conveyed away conveyed by the traveling-water.web to be delivered. 4

11. In amagnetic separator, the combination with a field framehavingupper and pole-pieces having V- lower ole-pieces, said shapedtipsseparated by an-alr-gap, a g'uid- .irlilg-table extending throughsaid air-gap near at t of waterto travell longitudinally along-the ti eupper-pole tin, means .for causing affilm of the upper po means forvibrating said table to cause-the particles thereon traveling filmwhereby the magnetic particles are attracted by the upper pole-piece andby said traveling film.

12, In a magnetic separatolythe combinamaterial to be-separated. to saidtable upper-pole tip, and means; water on said band, and

. material to be separated to said table and to- --ofthe film travelinglower to said tion with a 01 .iV-shaped tips se arated to be conveyedtoward said tion with a field-frame having upper and lower ole-pieces,said pole-pieces having V- sha e guiding-table extending through sa1dgap near the upper-pole tip, a band adapted to embraee the point of theupper-pole tip, means for causing said band to travel longi- .tudinallyalong said ole-tip, means for suplying water to sai band whereby a thinm is formed thereon, and means for feeding material to be separated tosaid table and to- 'ward said film whereby the magnetic par-' ticles areattracted by the upper pole-plece and conveyed away by .virtue of saidtraveling film.

- 13. In a magnetic separator, the combination'with a field-frame havingpole-pieces extending horizontally, said pole-pieces having V-shapedtips separated by a suitable air gap, of a guiding-table extendingthroughsaid air-gap near said up er-pbole, tip, a bandof non-magneticInateria em racing'the end of the upper-pole tip, means for causing saidband to travel longitudinally along said upper-pole tip, means formaintaining a film of means for feeding Ward said film whereb tic lesare attracted by the upper pole-piece and conveyed away to be deliveredbyvirtue with said band. 14. In a magnetic separator, thecombination-with a fieldframe having upper and ole-pieces, saidole-pieces having V- shaped ti s separated ya suitable air gap, of aguid ing 'table extending y the magnetic partips separatedby an air-gap.of a through said air-gap near the upper-pole: t p, a band embracing theend of the .u perelpole tip and adaptedto' travel. longitu mal y alongsaid tip, means for maintainingafilm of water on said band, means forfeeding amixture of water and material to be separated. to said table,

and toward said film, .sa1d film and water co- 0 erating to form atraveling. web between, t e upper-pole tip. and said table, themagnetic'particles bemg attraeted by said up er poleiece and conveyedaway to be deli ered y virtue of said traveling web. v -1'5. In a'ma'tie se arator, the combina- -frame'liavin pole-piecesextendmg-horizontally, said 0 e+pieces having gap,.a-guiding-ta leexteni'ng near the upper-pole tip, -a band of non-magnetic material embracingthe point of the uppere'pole tip, means for causing said band to/travelI p longitudinally along said-pole-tip,' /m,eans for e-piece, means forfeedin a material to be separated to saidftable, an

supplymg water to said band whereby a thin' film is formed thereon, andmeans for feeding almi'xture of water and material to be sepa-- -sa1drfilm and water cooperating to form a travelin water web between saidpole-tip and'said table whereby the magnetic articles are attracted bythe upper pole-piece a suitable air-.

. 5 rated to saidtable and toward said band,

and conveyed to one end thereof by virtue of v the traveling web.

- tip, a

- for feeding-materiel to table and toward said bend w 16. In asmagnetic separator, the combination with a field-Tame having upper andof whereby the magnetic particles ere released and delivered.

- 17. In a. magnetic separator, the combinetlon with a field-fran1ehaving an upper and lower pole-place extending horizontally, smdpole-pieces having \i-sha.ped tips separated by asultable air-gap, eguiding-table extending. near the upper-pole tip, a band of nonmagnetic.material embracing the point of the upperpole tipmid adapted to travellongitu dinnlly along said tip, means for feeding mixture oi water andmaterial to he sepe; rated to said table and toward said hand,

means in? supplying water to said hand wherel a thln film is formedthereon, to

travel therewith, said film ooopersting with the water on said table tosense :1. thin Web between said pole-tip and said table to travellongitudinally across the table, the magnetic psrtieles being attractedby the upper {)Olwvieee and conveyed by said traveling web to the end ofthe pole p e and means for dinitinishing the a-ttine .ivo influence atthe end of the pole-piece whereby the nmgnetic pmtioles are released tohe deli In witness \YllOl'LOlf we lm ve hereunto set our hands inpresence oi two witnesses.

FRANCIS JAM I .ls

Witnesses:

BF'nmcm'm' Bomoomx,

. J. S. THOMPSON.

